Digital Electronics - Multivibrators and 555 Timer

Exercise :: Multivibrators and 555 Timer - General Questions

6. 

Pulse stretching, time-delay, and pulse generation are all easily accomplished with which type of multivibrator circuit?

A. astable
B. monostable
C. multistable
D. bistable

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

7. 

The internal circuitry of the 555 timer consists of ________, an R-S flip-flop, a transistor switch, an output buffer amplifier, and a voltage divider.

A. a comparator
B. a voltage amplifier
C. two comparators
D. a peak detector

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

8. 

With most monostable multivibrators, what is the Q output when no input trigger has occurred?

A. LOW
B. +5 V
C. SET
D. HIGH

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

9. 

An astable multivibrator requires:

A. balanced time constants
B. a pair of matched transistors
C. no input signal
D. dual J-K flip-flops

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

10. 

A crystal demonstrates the ________ effect when a mechanical force across the crystal causes a small voltage to be generated.

A. photoelectric
B. Co-pitts
C. piezoelectric
D. flywheel

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.